From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751929AbaBZPtc (ORCPT ); Wed, 26 Feb 2014 10:49:32 -0500 Received: from mail-ee0-f53.google.com ([74.125.83.53]:55569 "EHLO mail-ee0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751761AbaBZPt2 (ORCPT ); Wed, 26 Feb 2014 10:49:28 -0500 From: Paolo Bonzini To: linux-kernel@vger.kernel.org Cc: kvm@vger.kernel.org, alex.williamson@redhat.com, mtosatti@redhat.com, gleb@kernel.org, jan.kiszka@siemens.com Subject: [PATCH 1/4] KVM: vmx: we do rely on loading DR7 on entry Date: Wed, 26 Feb 2014 16:49:10 +0100 Message-Id: <1393429753-20857-2-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1393429753-20857-1-git-send-email-pbonzini@redhat.com> References: <1393429753-20857-1-git-send-email-pbonzini@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently, this works even if the bit is not in "min", because the bit is always set in MSR_IA32_VMX_ENTRY_CTLS. Mention it for the sake of documentation, and to avoid surprises if we later switch to MSR_IA32_VMX_TRUE_ENTRY_CTLS. Signed-off-by: Paolo Bonzini --- arch/x86/kvm/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index daca80f0eae2..6e57e1434cf3 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2872,7 +2872,7 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf) !(_vmexit_control & VM_EXIT_ACK_INTR_ON_EXIT)) _pin_based_exec_control &= ~PIN_BASED_POSTED_INTR; - min = 0; + min = VM_ENTRY_LOAD_DEBUG_CONTROLS; opt = VM_ENTRY_LOAD_IA32_PAT | VM_ENTRY_LOAD_BNDCFGS; if (adjust_vmx_controls(min, opt, MSR_IA32_VMX_ENTRY_CTLS, &_vmentry_control) < 0) -- 1.8.3.1